diff --git a/pkgs/sdk/client/src/DataModel.cs b/pkgs/sdk/client/src/DataModel.cs
index 72c821e..923e016 100644
--- a/pkgs/sdk/client/src/DataModel.cs
+++ b/pkgs/sdk/client/src/DataModel.cs
@@ -49,7 +49,7 @@ internal FeatureFlag(
                 bool trackEvents,
                 bool trackReason,
                 UnixMillisecondTime? debugEventsUntilDate,
-                IReadOnlyList<string> prerequisites)
+                IReadOnlyList<string> prerequisites = null)
             {
                 Value = value;
                 Variation = variation;